TY  - BOOK
AU  - Sahlberg , Bengt.
TI  - LTA Lighter than air. Final report 1985. A feasibility study
SN  - 917850130x
PY  - 1986///
CY  - Suecia : 
PB  - STU, 
KW  - AERONAVES
KW  - DIRGIBLES
KW  - ZEPPELINS
ER  -